DeamonSet pod not scheduling on Master Node

Question

I'm trying to deploy daemon set for monitoring resources.

A DaemonSet ensures that all (or some) Nodes run a copy of a Pod.

I want it to run on each node including my master.

    spec:
      containers:
      - name: fluentd
        image: aerocloud.io/containers/fluentd:0.0.1
        volumeMounts:
        - name: varlog
          mountPath: /var/log
      volumes:
      - name: varlog
        hostPath:
          path: /var/log

But for some reason it is not being deployed on my master node. Am I missing something? How do I enforce the scheduler to schedule a pod on my master?

Answer 1

Ever since kubernetes 1.6, DaemonSets are not scheduled on the master node. You'll have to add toleration in the spec of this daemon set:

tolerations:
- key: node-role.kubernetes.io/master
  effect: NoSchedule

Check out the docs for an example and more information.